Frank w



To all whom it ana/ q concern:

.tetet FRANK W. MARsToN, or BosToN, MAssAoHUsETTs."

Letters Patent No. l97,788, dated December 14, 1869 -antedated November 30, 1869.

* -doom' ,rMPRoynMnNT IN rAs'rnNmGs roa consnrs.

The Schedule referred to in theselIetters Patent and making part of `the same.

Wlereas Letters Patent, dated December 1 5, 1868, and antedated December `2, 1868, Were issued to P. H. N iles and F. W. Marston, both of the city of Boston, county'of Sui'olk, and State of Massachusetts,

for Improvement in Oorset- Fasteuings; be it known that I, FRANK W. MARSTON, of the city of Boston, county of Suffolk, and State of Massachusettahave invented a new and useful,, improvement in said cor- ``set-fastenings; and -I do hereby declare the following 'to be a fulland exact description of my invention, reference'being .had tp the accompanyingdrawings,

which form a part of this specification. The object of my invention is 'to make the corsetfastenings described in. the'above-mentioned patent perfectly secure'without depending upon the pressure of thebody to keep them in place,',and, at thesa'me time, not to interfere 4with. the detaching of the fastenings,flas` there described. This is fully effected by means of a springg'constructed, attached, and operated in the manner hereinafter set forth;

In the drawing-ji Figure 1 is aneleyation of two stees connected. Figure' 2'is fan'end section of 'the steels and fastenings, enlarged, showing the buttonio in the angle of the tw'o slots b ando, andfiheldsecurely in position by the convex headof thebuttn engagiugwith'the co'n-` cavity d, and by the pressure of `the spring upon'it,

The spring a, shown` at B,"and jbroken off at A, is

..made of any,suit-able materiahan'd'is ofthe same size. and shape as the clasp which it covers.

flllhat end ofthe spring a farthest from the steel to 'Which it is attached is formed with a concavity on its und'er'sfde', of i suffi'cient size' to freely admit the convex head of lthe button. 'i i This spring is riveted, witl'the clasp, to the steel, as shown in fig. 2, and thus practically becomes a part of the clasp. v

I prefer this mode of constructing and applying a spring, for the purpose stated.

I make no variation'i-n the operation of fastening or releasiug the clasps, as described in the before-men'- tioned patent ;"but, in Iso fasteniug them, the head of .i 'I

the button c slips under' the spring a, and enters into the concavity d, where it is held 'securely. The-movement ofthe button, either up'ward through the vertical slot -b, or back through the lateral slot e, is` now impossible without the'applicatiou -of force in one or the other of those directions.

In releasihg the fastenings lby relative endwiseA` movement, the head of the button is forced out of the' concavity, and then the Whole button easily moves up and out of the vertical `slot.

vIf the head of the button protruded through the clasp uncovcred, it would, as'\iu ordinary-corset-fasteninge, Wear the clothing. The spring a makesla provision against this.. I' do not wish to embody this idea inmy claim; nor

do I broadly claim the usefof a spring for securing corset-fiisteiings; but I `What I do claim, is-

The spring a, covering the clasp, wheu'formed with a concavity, d, to engagewiththe head of the stud c,

andretain it in position, substautially'as described, and for the purpose set forth. I

- FRANK W. MARSTON.

` Witnesses:

HENRY E. GRAHAM, .TosHUA B Rooxs. 

